How to use this sheet

  • Start with fraction bars, so the child sees that 1/2 and 2/4 cover the same length.
  • Have the child write the number they multiply or divide by on both the top and the bottom, as an arrow.
  • For simplest form, ask "What is the largest number that divides both?"

Common mistakes

  • Multiplying only the bottom number, so 1/2 becomes 1/4. Whatever you do to the bottom, do to the top.
  • Adding the same number to top and bottom, so 1/2 becomes 2/3. That changes the size: only multiply or divide.
  • Stopping before the fraction is fully simplified, as in 6/12 to 3/6. Check whether both can be divided again.

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